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Finding the Fourth Proportional to 70,908.20, 106,332.22 and 26,503.90

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Solution

The fourth proportional to 70,908.20, 106,332.22 and 26,503.90 is: 39,744.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,908.20 : 106,332.22 = 26,503.90 : x
  2. Step 2: Convert to fraction form
    70,908.20/106,332.22 = 26,503.90/x
  3. Step 3: Cross multiply
    70,908.20x = 106,332.22 × 26,503.90
  4. Step 4: Simplify right side
    70,908.20x = 2,818,218,525.66
  5. Step 5: Solve for x
    x = 2,818,218,525.66/70,908.20
  6. Step 6: Final answer
    x = 39,744.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.